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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 3, PART X</FormAndLineReferenceDesc>
        <ExplanationTxt>BIO FOLLOWS GUIDANCE THAT CLARIFIES THE ACCOUNTING FOR UNCERTAINTY IN TAX POSITIONS TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN, INCLUDING ISSUES RELATING TO FINANCIAL STATEMENT RECOGNITION AND MEASUREMENT. THIS GUIDANCE PROVIDES THAT THE TAX EFFECTS FROM AN UNCERTAIN TAX POSITION CAN ONLY BE RECOGNIZED IN THE FINANCIAL STATEMENTS IF THE POSITION IS "MORE-LIKELY- THAN-NOT" TO BE SUSTAINED IF THE POSITION WERE TO BE CHALLENGED BY A TAXING AUTHORITY. THE ASSESSMENT OF THE TAX POSITION IS BASED SOLELY ON THE TECHNICAL MERITS OF THE POSITION, WITHOUT REGARD TO THE LIKELIHOOD THAT THE TAX POSITION MAY BE CHALLENGED. BIO HAS PROCESSES PRESENTLY IN PLACE TO ENSURE THE MAINTENANCE OF ITS TAX- EXEMPT STATUS; TO IDENTIFY AND REPORT UNRELATED INCOME; TO DETERMINE ITS FILING AND TAX OBLIGATIONS IN JURISDICTIONS FOR WHICH IT WAS NEXUS; AND TO IDENTIFY AND EVALUATE OTHER MATTERS THAT MAY BE CONSIDERED TAX POSITIONS. BIO HAS DETERMINED THAT THERE ARE NO MATERIAL UNCERTAIN TAX POSITIONS THAT REQUIRE RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS FOR THE YEAR ENDED DECEMBER 31, 2023</ExplanationTxt>
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        <FormAndLineReferenceDesc>SCHEDULE J, PAGE 1, PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>BIOCON, INC., (BIO), IS THE SOLE CORPORATE MEMBER OF THE MUSCULOSKELETAL TRANSPLANT FOUNDATION, INC., (MTF). THE BOARD OF DIRECTORS AND THE OFFICERS OF BIO OVERLAPS THAT OF MTF WITH BIO HAVING THE EXCLUSIVE RIGHT TO ELECT OR APPOINT ALL MEMBERS OF THE BOARD OF DIRECTORS OF MTF. BELOW IS AN OUTLINE OF MTF'S PROCESS TO ESTABLISH COMPENSATION LEVELS FOR EXECUTIVE AND OFFICER COMPENSATION. EACH YEAR, MTF RECEIVES AND ASSESSES THE REASONABLENESS OF TOTAL COMPENSATION ARRANGEMENTS FOR THE EXECUTIVE TEAM, INCLUDING THE CEO. THE ANALYSIS INCORPORATES COMPENSATION SURVEY DATA, LAST COMPILED IN JULY 2023, FORM 990'S OF COMPANIES OF RELATED INDUSTRIES AND SIMILAR SIZE. A BLEND OF BOTH FOR-PROFIT AND NOT-FOR-PROFIT COMPANIES IS USED. EVERY THIRD YEAR (MOST RECENTLY JULY 2023), MTF RETAINS THE SERVICES OF AN INDEPENDENT COMPENSATION CONSULTANT TO ASCERTAIN AND DETERMINE THAT MTF IS PAYING AND PROVIDING A REASONABLE TOTAL COMPENSATION PACKAGE TO THEIR EXECUTIVES AND TO PROVIDE AN OPINION LETTER OF THEIR FINDINGS. COMPENSATION COMMITTEE REVIEW: MTF'S BOARD OF DIRECTORS ESTABLISHED A COMPENSATION COMMITTEE IN 1995. THE RESPONSIBILITY OF THE COMMITTEE INCLUDES THE REVIEW AND APPROVAL OF EXECUTIVE AND STAFF COMPENSATION AND BENEFITS. THE COMPENSATION COMMITTEE TYPICALLY MEETS SEMI-ANNUALLY TO REVIEW MERIT AND BONUS RECOMMENDATIONS. A COPY OF THE COMPENSATION COMMITTEE'S CHARTER, AGENDAS, MEETING MATERIALS, AND MEETING MINUTES ARE MAINTAINED.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>BIOCON, INC. (BIO) WAS FORMED TO SERVE AS THE SOLE VOTING MEMBER OF, AND ACT AS THE HOLDING COMPANY FOR, THE MUSCULOSKELETAL TRANSPLANT FOUNDATION INC., (MTF) A NON-PROFIT 501(C) ORGANIZATION AND DEUTSCHES INSTITUT FUR ZELL-UND GEWEBEERSATZ GMBH, (DIZG) A GERMAN NON-PROFIT ORGANIZATION (AS DISCLOSED ON FORM 5471). MTF'S MISSION IS TO PROVIDE QUALITY ALLOGRAFT TISSUES FOR TRANSPLANTATION, RESEARCH AND EDUCATION. DIZG SPECIALIZES IN CULTURING AND DISTRIBUTION OF KERATINOCYTES, MUSCULOSKELETAL, AND OTHER TISSUE FORMS. BIO, AS HOLDING COMPANY, HAS AUTHORITY TO APPROVE FUNDAMENTAL AMENDMENTS TO ORGANIZATIONAL DOCUMENTS AND TO APPROVE CERTAIN CORPORATE TRANSACTIONS SUCH AS MERGERS AND DISSOLUTIONS. BIO ALSO HAS THE EXCLUSIVE RIGHT TO ELECT OR APPOINT ALL MEMBERS OF THE BOARD OF DIRECTORS OF MTF AND DIZG. BIO CONTINUES TO MONITOR AND GUIDE THE ACTIVITIES OF MTF AND DIZG, AS WELL AS ANY AFFILIATES THAT MAY BE FORMED OR ACQUIRED IN THE FUTURE, TO FOSTER THE PROVISION OF HIGH QUALITY HUMAN ALLOGRAFT TISSUE TO THE COMMUNITY THROUGH THE MOST ECONOMICAL AND EFFICIENT SYSTEM POSSIBLE. BIO PROGRAM SERVICE ACTIVITY: BIO'S PROGRAM SERVICE ACTIVITY IS TO SUPPORT THE TAX-EXEMPT MISSION OF MTF AND DIZG. BIO'S SUPPORT OF MTF INCLUDES THE SEGREGATION, PROTECTION AND OPERATION OF REAL PROPERTY ASSETS USED BY MTF IN CARRYING OUT ITS CHARITABLE ACTIVITIES. BIO HOLDS REAL ESTATE VIA ITS FOUR DISREGARDED ENTITIES (AS DISCLOSED ON SCHEDULE R, PART 1). AS SOLE MEMBER OF DIZG, BIO PROVIDES GUIDANCE TO FURTHER EXPAND GLOBAL REACH TO PATIENTS AROUND THE WORLD. FOR INDIVIDUAL STORIES ABOUT DONOR FAMILIES, PLEASE VISIT MTF'S WEBSITE AT HTTPS://WWW.MTFBIOLOGICS.ORG/WHO-WE-SERVE/DONORS-COMMUNITY/DONORS-FAMILIES. STORIES ABOUT RECIPIENTS ARE ALSO AVAILABLE ON THE WEBSITE AT HTTPS://WWW.MTFBIOLOGICS.ORG/WHO-WE-SERVE/DONORS-COMMUNITY/RECIPIENTS.</ExplanationTxt>
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        <ExplanationTxt>FORM 990, PART IV, QUESTIONS 14A AND 14B - BIOCON, INC NOTES THAT IT ANSWERED "NO" TO FORM 990, PART IV, QUESTION 14A AND 14B BECAUSE ITS ONLY INTERNATIONAL ACTIVITY CONSISTS OF DIZG ACTIVITY. 2023 ACTIVITY FOR DIZG IS SUMMARIZED ON FORM 5471.</ExplanationTxt>
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        <ExplanationTxt>MEMBERS OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS WERE PROVIDED WITH A COPY OF FORM 990. THE 990 WAS REVIEWED AT AN OPEN MEETING OF THE AUDIT COMMITTEE. SUBSEQUENT TO MODIFICATIONS, IF ANY, AS A RESULT OF THE MEETING, THE 990 IS CIRCULATED TO ALL OF THE MEMBERS OF THE BOARD OF DIRECTORS FOR THEIR FINAL REVIEW AND APPROVAL BEFORE FILING.</ExplanationTxt>
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        <ExplanationTxt>THE CEO RECEIVES NO COMPENSATION FOR DUTIES ASSOCIATED WITH BIOCON, INC. AND RELATED DISREGARDED ENTITIES. HE IS PAID BY MTF, A RELATED ORGANIZATION. SEE SCHEDULE J, SUPPLEMENTAL INFORMATION, FOR ADDITIONAL INFORMATION.</ExplanationTxt>
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        <ExplanationTxt>THE TREASURER AND SECRETARY RECEIVE NO COMPENSATION FOR DUTIES RELATED TO BIOCON, INC. AND RELATED DISREGARDED ENTITIES. THEY ARE PAID BY MTF, A RELATED ORGANIZATION. SEE SCHEDULE J, SUPPLEMENTAL INFORMATION, FOR ADDITIONAL INFORMATION.</ExplanationTxt>
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        <PrimaryActivitiesTxt>SEE PT VII</PrimaryActivitiesTxt>
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        <InvolvedAmt>3848762</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ACCTG BOOKS/RECORDS</MethodOfAmountDeterminationTxt>
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        <InvolvedAmt>420000</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ACCTG BOOKS/RECORDS</MethodOfAmountDeterminationTxt>
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      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>MUSCULOSKELETAL TRANSPLANT</BusinessNameLine1Txt>
          <BusinessNameLine2Txt>FOUNDATION INC</BusinessNameLine2Txt>
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        <TransactionTypeTxt>M</TransactionTypeTxt>
        <InvolvedAmt>572043</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ACCTG BOOKS/RECORDS</MethodOfAmountDeterminationTxt>
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      <TransactionsRelatedOrgGrp>
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          <BusinessNameLine1Txt>MUSCULOSKELETAL TRANSPLANT</BusinessNameLine1Txt>
          <BusinessNameLine2Txt>FOUNDATION INC</BusinessNameLine2Txt>
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        <TransactionTypeTxt>R</TransactionTypeTxt>
        <InvolvedAmt>1227903</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ACCTG BOOKS/RECORDS</MethodOfAmountDeterminationTxt>
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      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>MUSCULOSKELETAL TRANSPLANT</BusinessNameLine1Txt>
          <BusinessNameLine2Txt>FOUNDATION INC</BusinessNameLine2Txt>
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        <TransactionTypeTxt>G</TransactionTypeTxt>
        <InvolvedAmt>802375</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ACCTG BOOKS/RECORDS</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>MUSCULOSKELETAL TRANPLANT</BusinessNameLine1Txt>
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        <TransactionTypeTxt>E</TransactionTypeTxt>
        <InvolvedAmt>5806155</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>ACCTG BOOKS/RECORDS</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE R</FormAndLineReferenceDesc>
        <ExplanationTxt>SCHEDULE R RELATED ORGANIZATIONS AND UNRELATED PARTNERSHIPS SCHEDULE R, PART I(B): MAY STREET MEDICAL, LLC. - RENTAL REAL ESTATE OLYPHANT, L.L.C. - RENTAL REAL ESTATE JESSUP/PRTB, L.L.C. - RENTAL REAL ESTATE JESSUP III, L.L.C. - RENTAL REAL ESTATE SCHEDULE R, PART II(B): MUSCULOSKELETAL TRANSPLANT FOUNDATION, INC., (MTF) TISSUE BANK DEUTSCHES INSTITUT FUR ZELL-UND GEWEBEERSATZ GMBH, (DIZG) TISSUE BANK SCHEDULE R, PART IV, LINE 1: DIZG HAS BEEN DETERMINED TO HAVE SOME TAX-EXEMPT ACTIVITIES AS WELL AS TAXABLE ACTIVITIES IN GERMANY. THUS, DIZG IS SHOWN AS BOTH AN EXEMPT AND TAXABLE ORGANIZATION ON SCHEDULE R. DIZG IS A BROTHER/SISTER ENTITY RELATIVE TO MTF AND IS WHOLLY OWNED BY BIOCON, INC. SCHEDULE R, PART V, LINE 2: ITEMS 2, 4, AND 6 CONTAIN TRANSACTIONS BETWEEN MTF AND DIZG. THEY DID NOT OCCUR BETWEEN MTF AND BIOCON, BUT ARE INCLUDED BECAUSE DIZG IS WHOLLY OWNED BY BIOCON AND ALSO FOR GREATER TRANSPARENCY. IN 2023: MTF SOLD TISSUE TO DIZG IN THE AMOUNT OF 420,000, INCLUDED IN ITEM 2; DIZG REPAID MTF OUTSTANDING ADVANCES TOTALING 461,435, INCLUDED IN ITEM 4; MTF LOANED DIZG 1,802,480, INCLUDED IN ITEM 6. GIVEN THESE CIRCUMSTANCES, NO FORM 926 FILING BY MTF WAS DEEMED NECESSARY.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>